Orosur Mining has reported a 135.5-metre gold intersection from drilling at the APTA prospect within its Anzá gold project in Colombia, adding new mineralised results to a project that already contains a defined resource at Pepas. The AIM- and Toronto-listed company said hole MAP107 returned an average grade of 1.91 grams of gold per tonne over 135.5 metres, including 49 metres grading 4.06 grams per tonne. The hole ended in mineralisation despite difficult drilling conditions. The intersection requires further drilling to establish the width, orientation and continuity of the mineralised zone. The company is continuing the programme eastward at APTA to investigate shallower mineralisation.
Pepas provides an established resource base
Anzá already has a maiden resource at the Pepas prospect containing approximately 1.14 million tonnes at 5.46 grams of gold per tonne. The estimate includes approximately 201,000 ounces of gold in the indicated category. The project consequently combines the defined Pepas resource with the emerging APTA mineralisation being tested through ongoing drilling. Results from MAP107 provide an additional target for follow-up work as Orosur investigates the scale and geological continuity of the system. The company raised C$20 million in late 2025, providing funding for its exploration programme and allowing drilling to continue without an immediate requirement for another small equity placement.
Exploration remains focused on resource definition
Orosur’s current work remains centred on establishing the size and continuity of the mineralised system rather than preparing mine construction financing. The project’s London market listing provides a European capital-market connection, but Anzá remains at the exploration and resource-development stage. Further drilling is required to determine whether mineralisation at APTA can be incorporated into a broader resource beyond the existing 201,000-ounce Pepas estimate.
Colombia requirements remain relevant to development
Advancing Anzá would also require attention to permitting, social considerations and security conditions in Colombia. Surface-access arrangements, environmental baseline studies and engagement with local communities form part of the requirements for progressing a technically defined deposit toward development. The 135.5-metre MAP107 intersection provides the basis for additional drilling at APTA, while the existing 201,000-ounce indicated Pepas resource remains the project’s established mineral resource component.
